We focus on extracting three high-impact and comparatively frequent events in the corpus – spacecraft launches, spacecraft failures, and spacecraft decommissionings. While IE is often framed as a triple extraction task [1]}, here each event schema has between 3 and 6 optional slots to populate with event-relevant information. For example, the Launch event is used to describe the launch of a specific satellite, and may include additional information such as the launch vehicle used (e.g. an Atlas V), the launch site (e.g. Cape Canaveral), the target orbit (e.g. geosynchronous), an organization the launch is on behalf of, and the date the launch occurred. A complete list of the event slots in each schema is included in Table REF .
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